Hose-coupling.



A. l'.-CLAR-K nose comma. APPLICATIDN Ell-ED OCT-29. I918.

Patented Mar. 4, 1919.

-WITNESS:

A. J. CLARK. HOSE CGUPUNG. APPUCAHOB man OCT. 29. mm.

Patented Mar. 4,1919.

2 SHEETS-$HEET 2 INVENTOR. A Clark WITNESS:

ATTORNEY. l

ARTHUR JAMES CLARK, 0F TRAVERSE CITY, MICHIGAN.

HOSE-CO UPLIN G.

Specification of Letters Patent.

Patented Mar. 4, 1919.

Application. filed October 29, 1918. Serial No. 260,163.

1 l1 (1/! whom. it may (07166771:

Be it known that ARTHUR JA nus CLARK, a citizen of the United States, residing at 707 St. Division street. Traverse City, in the county of Grand 'lraverso and State of Michigan, have invented certain new and useful Improvements in Hose-Couplings, of which 1110 following is a specification.

This invention relates to improvements in hose couplings.

The primary object of the invention is to provide a coupling adapted to be quickly and ell'ectivcly operated, and one which will insure of a water tight joint between the parts.

A further object of the invention is to provide in a two part coupling, means for attarhinp and detaching the members, and means carried by one member for automatically sealing the joint when the two members are brought together.

The invention also comprchends improve ments in the details of construction and arrangement of parts which will be herein after described and particularly pointed out in the claims.

In the draw lugs Figure 1 a central longitudinal section of the coupling, when in use.

Fig. 2 is a detail perspective view of one of the members.

Fig. 3 is a transverse section on the line .i- -a: of Fig. 1.

Fig. 4 is a detail one of the members.

Fig. 5 is a detail perspective view of the lock.

1 indicates the hydrant end member of the coupling. and at its outer end it is provided with an annular flan -o 2, fo. med by an annular inclined cutaway portion, indicated at 3. The inclined or beveled surface of the cut away portions slants toward the outer end of the coupling section 1, as clearly shown in Fig. 1. e

i indicates the hose end member of the coupling, which is substantially of the same diameter as the member 1, and is enlarged as shi'rwn at 5. The enlargement 5, is internally grooved as at 6, and in rear of the groove the u'ieniber 4- is formed with an emgated annular groove 7, the wall of which is substantially in alinement with an end flange 8, formed by the groove Permanently fixed in the elongated groove "1', is a collar 9, pro- Vided with a flange 10, which abuts against perspectivesection of force the vbier 1.

the end wall 11, of the groove 7, the inner diameter of the collar corresponding to the inner diameter of the hose member 4. recess 12, is formed between the collar 9, and the wail of the groove 7 and mounted therein is a strong cxpansible coil spring 13, the rear end of which bears against the flange 10, while its forward end extends into the transverse plane of the annular groove 5, and terminates beyond the free end of the collar 9. i

A packing gland .14, is seated in the annular groove 5, and comprises a metal or like ring, 15, formed in overlapping sections 16, fastened together by screws 18. On the face of the ring 15, is a rubber or like ring 19, which overlaps the joint formed between the members 1 and 4, when the coupling is assenibled.

packing gland outwardly toward the rear wall of the groove 5, the width of the gland being less than the width of groove 5, permits of the gland having a movement to permit the spring and the gland to perform the desired function.

The hose member 4, is provided with an extension 20, beyond the enlargement, to snugly fit over the This extension 20, is enlarged on one side shown at 21, and in the same is formed an opening 22, which is in radial alinemcnt with the cut away portion 3 of the hydrant member. A lock 23, operates in the opening 22, and its inner surface is beveled to engage with the beveled surface of the cut away portion 3 on member 1. The upper portion of the lock 23 is provided with a coarse thread 24, which extends beyond the enlarged portion 21 and which is engaged by a nut 27, which seats on the outer surface of the enlarged portion. A washer 28, is secured to tile upper end of the lock. and it overlaps the nut to limit the inward movement of the lock when operating the couplmg.

Near the inner end of the look there is formed a transverse opening), 30, through which extends the free end of a leaf spring 31, the opposite end of the s ring being fastened to the extension 20 oi the hose memher, as indicated at The spring 31, is confined in a groove 33, formed on the inside of the extension, so that when the lock is withdrawn the spring will not interfere with the flung-e2 of member 1, when asscnr bling the coupling, The tension of the The spring 13 acts to normally end of the hydrant memi spring is such as to tend to draw the lock inwardly toward the center of the member 1, to actuate the look when the nut is rotated.

6 To operate the cou ling, the extension on hose member 4 is s ipped over the end of the hydrant member 1, until the acking gland 14 engages the flange 2 and places spring 13 under increased tension. In this movement the beveled end of the lock engages the flange 2, and forces the look into its openings until the cut out portion 3 is reached, whereupon the spring 31, quickly acts to pull the look into position behind the en the parts are thus assembled, as shown in Fig. 1, the spring 13 behind the land 14 forces the latter over the joint 40,

tween the flange 2, and the adjacent wall of the groove, consequentl effecting a seal. The gland engaging the ace of the flange 2 forces the latter against the face of the a "lock, with the result that the two coupling 'membersare looked together, and the joint between said members is effectively sealed.

7 Any slight .wear between the parts will be readily taken care of by the resiliency of the rubber ring, although itis primarily intended that the parts willso fit and cooperate, that when the loclr is in its seat the faces of the flnngeand adjacent wall of the groove will be flush, and that the overlapping rub- ;ber ring will squarely engage same.

, To uncouple the members, the nut 27 is rotated, which action withdraws the lock 23 a inst the tension of the spring 31, and out o 'the annular cut away 1portion, and frees the flange 2, whereupon t e hose member 4, can very readily be withdrawn from the hose member 1.

3 From the foregoing descri tion it IS evident I have rovlded a simp e and efiective .coupling, and one which can be quickly and conveniently operated to couple and un- 4 con le hose sections.

at I claim is Y 1. A hose coupling comprising two members, one of which is provided with an expansible spring and a packing gland with which'the spring engages, the other member having an annular flange with which the packing gland engages, a threaded lock mounted on the first mentioned member and enga 'ng behind the flange to lock the two 'mem drs together, a nut engaging the threaded rtion of the lock to actuate the same, an a 3 ring for normally drawing to move said lock out, an

said member and extended into the groove,

a packing gland in the groove, the extension having an opening, a lock mounted in the opening, a spring mounted in the extension and engaging the inner end of the lock to normally draw the lock inwardly to operative position, means on. the outside of the extension to actuate the lock to move same in and out, and a second member formed with an end flange and adapted to fit in the extension, the flange engaging the packing gland and the look when operated to draw same inwardly engaging back of the flange, whereby to/lock the members together.

3. A hose coupling comprising a member formed with a groove and an extension, a collar supported in said member, and spaced from the wall of the latter to form a recess, an expansible spring mounted in the recess and extended into the annular groove, a packing gland in the annular groove, the spring engaging the gland, the extension having an opening, a lock mounted in the opening, a sprin on the inside of the extension to normally draw the lock inwardly, the lock having a threaded portion, a not on the outside of the extension to engage the threaded portion to move the lock out, and

a second member having an end flange which engages the packing gland, and which is engaged by the inner end of the lock, whereby to hold the two members together.

4. A hose coupling comprising two members, one fitting'wit in the other, a spring actuated packin gland' between the two members, one 0 .said members having a flange, a lock on the other of said members to engage the flange, said lock having a threaded stem, a nut engaging the threaded stem, and a sprin which acts to draw the lock inwardly to ocking position.

5. A hose couplin comprisin a member provided with an elfiargement armed with an inner groove and further provided with an extension, a flanged collar supported inside said member and spaced from the inner wall thereof to provide a recess, a packing gland in the'annular groove, an expansible spring in the recess, one end of said spring engaging the flange of the collar, and the other end engaging the packing gland, a

second member fitting in the extension and engaging the packing gland, a lock between the two members comprisin threaded means a spring which normally draws said look into lockin position, whereby the two members may coupled or uncoupled.

In testimony whereof I aflix my signature.

ARTHUR JAMES CLARK. 

